{
  "version": "0.1.0",
  "row_count": 150,
  "canonical_units": {
    "rho": "kg/m^3",
    "E": "Pa",
    "nu": "dimensionless",
    "mu_s": "dimensionless",
    "mu_d": "dimensionless",
    "e": "dimensionless",
    "G": "Pa",
    "K": "Pa"
  },
  "field_types": {
    "material_description": "string",
    "material_class": "string",
    "material_family": "string",
    "rho_value": "nullable_float64",
    "rho_source": "nullable_string",
    "rho_dt_obtained": "nullable_iso8601_datetime",
    "E_value": "nullable_float64",
    "E_source": "nullable_string",
    "E_dt_obtained": "nullable_iso8601_datetime",
    "nu_value": "nullable_float64",
    "nu_source": "nullable_string",
    "nu_dt_obtained": "nullable_iso8601_datetime",
    "mu_s_value": "nullable_float64",
    "mu_s_source": "nullable_string",
    "mu_s_dt_obtained": "nullable_iso8601_datetime",
    "mu_d_value": "nullable_float64",
    "mu_d_source": "nullable_string",
    "mu_d_dt_obtained": "nullable_iso8601_datetime",
    "e_value": "nullable_float64",
    "e_source": "nullable_string",
    "e_dt_obtained": "nullable_iso8601_datetime",
    "G_value": "nullable_float64",
    "G_source": "nullable_string",
    "G_dt_obtained": "nullable_iso8601_datetime",
    "K_value": "nullable_float64",
    "K_source": "nullable_string",
    "K_dt_obtained": "nullable_iso8601_datetime"
  }
}